Authorized Littelfuse Distributor
Littelfuse PGR-6131-120 - MOTOR RELAY, 16A BUILT-IN CTS, 120VAC. The PGR-6130 Electronic Overload Relay provides protection for small three-phase motors up to 1,000 Vac. Integrated CTs are for currents up to 90 A and external CTs can be used for currents above 90 A. The protective functions include overload, overtemperature, phase imbalance, phase loss, and phase sequence.
Littelfuse

PGR-6131-120

UPC: 079458189148


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Overview

The **Littelfuse PGR-6131-120 Motor Relay** is a high-performance electronic overload relay engineered to safeguard small three-phase motors operating up to 1,000 Vac. Designed for industrial and commercial applications, this relay combines advanced protection features with a compact, robust form factor, ensuring reliable motor performance and extended equipment lifespan. The **PGR-6131-120** is part of Littelfuse’s industry-leading portfolio of motor protection solutions, trusted by engineers and maintenance professionals worldwide for its precision, durability, and ease of integration. This relay delivers comprehensive protection against critical failure modes, including **overload, overtemperature, phase imbalance, phase loss, and phase sequence errors**. The integrated current transformers (CTs) handle currents up to 90A directly, while external CTs can be added for applications exceeding this threshold, making it versatile for a wide range of motor sizes and power ratings. With a **16A current rating** and **120VAC voltage compatibility**, the PGR-6131-120 is ideal for motors in HVAC systems, pumps, conveyors, and other industrial machinery where consistent operation is essential. **Key Features and Benefits:** - **Advanced Motor Protection:** Monitors overload, overtemperature, phase imbalance, phase loss, and phase sequence to prevent catastrophic failures and reduce downtime. - **Built-in CTs for Simplified Installation:** Integrated current transformers support up to 90A, eliminating the need for external CTs in many applications. External CTs extend compatibility for higher current systems. - **Wide Voltage Range:** Operates at **120VAC**, making it suitable for global industrial and commercial power systems. - **Compact and Robust Design:** Engineered for harsh environments, the relay’s durable construction ensures long-term reliability in demanding conditions. - **Easy Integration:** Designed for seamless integration into existing motor control systems, reducing installation time and complexity. **Typical Applications:** The **PGR-6131-120** is widely used in industries such as **manufacturing, water treatment, food processing, and HVAC**, where three-phase motors are critical to operations. Common applications include: - **Pumps and compressors** in water and wastewater systems. - **Conveyor belts and material handling systems** in warehouses and production lines. - **HVAC systems** in commercial buildings and industrial facilities. - **Machining tools and CNC equipment** requiring precise motor control. **Why Choose Littelfuse?** Littelfuse is a global leader in circuit protection, power management, and electronic protection solutions, with decades of expertise in safeguarding industrial equipment. The **PGR-6131-120** reflects the company’s commitment to innovation, quality, and reliability, ensuring that your motors operate safely and efficiently. Whether you’re protecting a single motor or an entire facility, Littelfuse’s motor relays provide the peace of mind that comes from using industry-trusted technology. **Installation and Maintenance Considerations:** The **PGR-6131-120** is designed for straightforward installation, with clear labeling and compatibility with standard motor control panels. Regular maintenance involves checking CT connections, verifying protective settings, and ensuring proper calibration to maintain optimal performance. Littelfuse provides comprehensive documentation, including wiring diagrams and technical specifications, to simplify setup and troubleshooting. For engineers and maintenance teams seeking a **cost-effective, high-reliability motor protection solution**, the **Littelfuse PGR-6131-120** delivers unmatched performance. Its combination of advanced features, durability, and ease of use makes it an essential component in any motor protection strategy.
  • 16A current rating with 120VAC voltage compatibility
  • Built-in CTs for currents up to 90A; external CTs for higher currents
  • Protects against overload, overtemperature, phase imbalance, phase loss, and phase sequence errors
  • Compact, robust design for harsh industrial environments
  • Easy integration into existing motor control systems

Specifications

Application
NA
Brand Name
Littelfuse
Current Rating
16 A
Poles
3-Phase
Series
PGR-6130
Special Features
Adjustable trip setting
Standard
UL Listed
Sub Brand
PGR 6130 Series
Type
Protection Relay
Voltage Rating
120 VAC
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6896057-1

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Relay Accessories, Sockets & Clips, Printed Circuit Board, Phenolic, Printed Circuit Board, 6, Socket, Potter & Brumfield R10

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Relay Accessories, Sockets & Clips, Solder, Polyester, Printed Circuit Board, 2, Socket, Potter & Brumfield R10

1-1393143-6

Relay Accessories, Sockets & Clips, Solder, Polyester, Printed Circuit Board, 2, Socket, Potter & Brumfield R10
Power supply for DIN-rail

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IP67 SCP-X Extreme Environment Series Power Supply. Double Stacked, Output Power 2 x 100W, Output Voltage 24 Vdc, Output Current 7.6 A total, 3.8 A per pair

Frequently Asked Questions about Littelfuse

What certifications and standards do Littelfuse products comply with?

Littelfuse products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Customers can verify specific product certifications by consulting individual product datasheets on Littelfuse.com, which provide comprehensive details about standards compliance for each component.

What industries and applications are Littelfuse products used for?

Littelfuse products are critical for electrical protection and safety across multiple industrial sectors, including manufacturing, automation, power distribution, and electrical control systems. Their comprehensive product portfolio serves industries that require robust electrical protection, including motor and pump applications, solar installations, programmable logic controllers (PLCs), electrical switch panels, and critical infrastructure environments. Key product lines protect against overcurrent, voltage transients, ground faults, and temperature-related electrical risks, ensuring equipment safety and operational reliability.

What technical support does Littelfuse offer?

Littelfuse offers comprehensive technical support through multiple channels. Their Technical Hotline (800-TEC-FUSE) provides direct access to engineers who can help identify issues and recommend solutions. Additionally, Littelfuse offers extensive online Technical Resources at Littelfuse.com, including datasheets, product manuals, whitepapers, application guides, and online design tools. Their experienced product and application engineers also provide step-by-step support from design to installation.

What are the main product lines offered by Littelfuse?

Littelfuse offers comprehensive industrial protection and control product lines, including fuses, fuse holders, protection relays, temperature sensors, and electrical safety components. Their key product categories span surge protective devices, custom OEM products, electrical switch panels, medium voltage fuses, ground-fault protection relays, motor and pump protection devices, and temperature sensors. These products are designed to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from electrical faults.

What are the key features of Littelfuse products?

Littelfuse products feature exceptional circuit protection technologies with key characteristics including UL/IEC safety standard compliance, low internal resistance, and advanced protective capabilities across multiple product lines. Their components provide critical protection for industrial systems, offering features like overcurrent protection, voltage transient suppression, and resettable protection devices with ultra-low resistance and compact designs. Key product lines include fuses, metal oxide varistors (MOVs), TVS diodes, PolySwitch devices, and specialized electronic protection components that enhance system reliability and safety.

What environmental ratings do Littelfuse products have?

Littelfuse products feature comprehensive environmental ratings, including NEMA Type 1, 2, 3, 3R, 4/4X, 12, and 13 certifications, as well as IP65 protection. These ratings ensure superior protection in diverse industrial environments, with an operating temperature range of -40°F to +131°F (-40°C to +55°C). Many products also include UV-stabilized materials and neoprene gaskets for enhanced durability in outdoor and challenging conditions.

What accessories are available for Littelfuse products?

Littelfuse offers several key accessories across their product lines, including fuse holders, voltage monitoring modules, and terminal connectors. Specific accessories include the LPSM003ZXID (indicating) and LPSM003Z (non-indicating) POWR-SAFE Dead Front fuse holders for Class CC and Midget-Style fuses, the VRM6048 voltage monitor accessory module, and female quick connect terminals (P1015 series) in various wire gauge sizes. These accessories are designed to enhance protection, monitoring, and connectivity for Littelfuse electrical components.

What is Littelfuse's warranty policy?

Littelfuse provides comprehensive warranty details on their official website at www.littelfuse.com/warranty. Customers should visit this page to review the specific warranty terms and conditions for their specific product lines. For direct warranty support or questions, customers can contact Littelfuse Technical Support at 1-800-TEC-FUSE or email [email protected].

What communication protocols do Littelfuse products support?

Littelfuse supports a comprehensive range of industrial communication protocols, including PROFIBUS, PROFINET, EtherNet/IP, DeviceNet, Modbus RTU, and CANopen. Our products provide flexible connectivity solutions across multiple industrial automation platforms, enabling seamless integration with various control systems and network architectures.

How are Littelfuse products typically installed?

Littelfuse products are typically installed using specialized mounting hardware like fuse holders, blocks, and panels designed for specific industrial applications. The POWR-SAFE Dead Front holders, for example, provide optimum protection for Class CC and Midget-Style fuses, supporting installations up to 600 VAC/DC. Installation often involves using precision terminals with strain relief, such as 0.25 in. female quick connect terminals, to ensure secure and safe electrical connections in industrial control systems.